So far as we know, all the fundamental laws of physics, like Newton's equations, are reversible.

If you think you understand quantum mechanics, you don't understand quantum mechanics.

Our responsibility is to do what we can, learn what we can, improve the solutions, and pass them on.

It doesn't matter how beautiful your theory is, it doesn't matter how smart you are. If it doesn't agree with experiment, it's wrong.

If you can't explain something to a first year student, then you haven't really understood .

God was invented to explain mystery. God is always invented to explain those things that you do not understand.

Nature uses only the longest threads to weave her patterns, so that each small piece of her fabric reveals the organization of the entire tapestry.

My rule is, when you are unhappy, think about it. But when you're happy, don't. Why spoil it? You're probably happy for some ridiculous reason and you'd just spoil it to know it.

Religion is a culture of faith; science is a culture of doubt.

The only way to deep happiness is to do something you love to the best of your ability

Einstein was a giant. His head was in the clouds, but his feet were on the ground. But those of us who are not that tall have to choose!

Happiness envelopes the heart.

How readily our thoughts swarm upon a new object, lifting it a little way, as ants carry a blade of straw so feverishly, and then leave it.

Justice Scalia was a lion of the law. Agree or disagree with him, all of his colleagues on the bench shared his wisdom and his humor. And like them, I miss him.

What happened to fun?" "Our insurance doesn't cover it!

Prenatal testing is a complicated decision for many women, forcing us to confront concerns about a disabled child and risks of miscarriage.

It's weird for me when someone asks me to do a remix as Girl Talk and not use samples.

They will wait, well disposed, for others to remedy evil, that they may no longer have have it to regret.

And we went our separate ways without having understood each other. As in this world nobody understands the other easily.

God is not an elusive dream or a phantom to chase, but a divine person to know. He does not avoid us, but seeks us. When we seek Him, the contact is instantaneous.

I am smaller in size compared to everyone else. But my dreams are bigger than everyone else.